CVE-2021-24441 Explained : Impact and Mitigation
Learn about CVE-2021-24441, an authenticated CSV injection vulnerability in Sign-up Sheets WordPress plugin < 1.0.14. Understand the impact, affected versions, and mitigation steps.
This article provides detailed information about CVE-2021-24441, a vulnerability in the Sign-up Sheets WordPress plugin version 1.0.14 and earlier that could lead to a CSV injection issue.
Understanding CVE-2021-24441
This CVE involves an authenticated CSV injection vulnerability in the Sign-up Sheets WordPress plugin, impacting versions earlier than 1.0.14.
What is CVE-2021-24441?
The Sign-up Sheets WordPress plugin before version 1.0.14 fails to sanitize or validate the Sheet title during CSV generation, opening the door to potential CSV injection attacks.
The Impact of CVE-2021-24441
Exploitation of this vulnerability could allow authenticated attackers to inject malicious content into CSV files generated by the plugin, leading to various forms of attacks including data manipulation and unauthorized access.
Technical Details of CVE-2021-24441
This section delves into the specifics of the vulnerability.
Vulnerability Description
The vulnerability arises from the lack of proper sanitization or validation of Sheet titles within the plugin, allowing for the injection of malicious CSV data.
Affected Systems and Versions
The vulnerability affects Sign-up Sheets WordPress plugin versions prior to 1.0.14.
Exploitation Mechanism
Attackers with authenticated access can exploit the vulnerability by manipulating Sheet titles to inject malicious content into CSV files generated by the plugin.
Mitigation and Prevention
To secure systems from CVE-2021-24441, immediate and long-term measures should be implemented.
Immediate Steps to Take
Users are advised to update the Sign-up Sheets plugin to version 1.0.14 or later to mitigate the vulnerability. It is crucial to ensure all systems are running the latest patched version.
Long-Term Security Practices
Developers should consistently validate and sanitize user inputs, especially when handling CSV data, to prevent similar injection vulnerabilities in the future.
Patching and Updates
Regularly monitor for security updates and apply patches promptly. Stay informed about plugin vulnerabilities and ensure timely installation of patches and updates.